Sash lock



Feb. 4, 1936.

A. OBENCHAIN SASH LOCK ed Oct. 9, 1955 Patented Feb. 4, 1936- UNETED STATES ATENT OFFICE 2 Claims.

This invention relates to sash fasteners, and more particularly to that type of sash fasteners illustrated in my prior Patent No. 1,012,418 granted December 19, 1911, in which angularly disposed bolts are interconnected to operate concurrently and to engage both the window frame and a sash so as to lock both sash with respect to each other and also the window frame.

The object of the present invention is to provide an improved construction of this type of sash lock with means for locking the bolts in either retracted or extended position.

The invention consists in the novel construction, arrangement, and combination of parts as hereinafter more particularly described and claimed.

One sheet of drawings accompanies this specification as part thereof, in which like reference characters indicate similar parts throughout.

In the accompanying drawing:

Figure 1 is a fragmentary perspective View of the improved device applied to window sash and window frame with the bolts in extended position;

Figure 2 is a similar perspective view of the device removed with the bolts in retracted position;

Figure 3 is a bottom plane view with parts broken away;

Figure 4 is a cross-section taken on line 4-4 of Figure 1;

Figure 5 is a detailed perspective of one of the bolts removed; and

Figures 6 and '7 are detailed cross sections longitudinal and transverse through the sleeve M on bolt 8.

Referring to the drawing, S indicates the top rail of a lower sash on one corner of which the improved sash look I is mounted so that its intersecting bolts 6 and 8 may engage respectively the window frame and the upper sash as indicated. The device consists of a casing having a top 3 and marginal walls 2, one of the wide marginal walls 2' being somewhat longer than its opposite wall and connected thereto at one end with a relatively short end portion 4 parallel with the opposite end wall and a curved portion 5 providing an indent in the casing to provide clearance for the sash cord and spacer strip.

The bolt 8 is in effect both a locking bolt and an operating bolt and may be provided on one end with the finger grasp ID. The bolt 8 is further provided adjacent the finger grasp It with a lateral lug l2 shaped and sized to correspond with a lateral indent in the hole 9. This lateral lug I2 is of a length corresponding to the sliding stroke of the bolt 8, so that when the bolt 8 is in extended position or looking position the lug I2 is entirely within the casing and when the bolt 8 is in retracted or unlocked position, lug i2 is entirely without the casing. By reason of this structure it will be apparent that by ro tation of bolt 8, the bolt may be locked against sliding movement with respect to the casing in either its extended or retracted position.

The bolt 5 is preferably offset as at I9 to provide clearance and to permit its free sliding movement with respect to bolt 8, and bolts 6 and 8 are interconnected by a link No pivoted at each end with respect to one of these bolts.

To permit the rotation of bolt 8 to effect its locking and unlocking with respect to the casing, this bolt is provided with a sleeve bearing I3 in which is mounted a sleeve M to which the connecting rod I6 is pivoted as by a rivet [5. The opposite end of the connecting rod may be connected directly to bolt 6 as by a rivet pin H.

A compression spring I8 is disposed upon bolt 6 between the end of connecting rod l6 and the adjacent end of the casing so as to normally project bolt 6 and, through connecting rod I6, bolt 8 into extended position.

Various modifications will readily suggest themselves to those skilled in the. art, but all within the scope of the present invention as claimed.

Having fully described my invention, I claim:

1. In a sash look, a casing, intersecting slidable bolts mounted therein, a link pivotally connected at its ends relative to the bolts and disposed in an inclined position to said bolts whereby one is operated through said link by manipulation of the other, latch means carried by the manipulable bolt adapted to engage the casing with the bolt in either its extended or retracted position, to secure both bolts in either respective position, said manipulable bolt being rotatable with respect to the other bolt for operating said latch means, the latter comprising a lateral lug of a length equal to the sliding limit of said bolt, the casing having an orifice shaped and sized to permit the passage of said lug, whereby said lug, may, upon rotation of said bolt, be made to engage either side of the casing adjacent said orifice.

2. In a sash look, a casing, intersecting sliding bolts mounted therein, a link pivotally connected at its ends relative to the bolts, and disposed in an inclined position to said bolts whereby one is operated through said link by manipulation of the other, latch means carried by the manipulable bolt adapted to engage the casing with the bolt in either extended or retracted position, to secure both bolts in either respective position, said manipulable bolt being rotatable with respect to the other bolt for operating said latch means, said manipulable bolt being provided with a seat for a sleeve, a sleeve mounted in said seat, said link being pivoted at one end to said sleeve and at its other end to the other bolt, the latch means comprising a lug on the manipulable bolt of a length substantially equal to the sliding limit of the bolt, said casing having an orifice permitting the passage of said lug, whereby said lug, may, upon rotation of said manipulable bolt permitted by said sleeve, be made to engage either side of the casing adjacent said orifice.

JOHN A. OBENCHAIN. 

